例句與造句

1. Corrosion analysis of economizer tube is investigated by sem and eds , x - ray etc with the condition of boiler economizer
   摘要結(jié)合余熱鍋爐省煤器的工況條件，用掃描電鏡及eds 、 x射線等方法分析省煤器爐管腐蝕原因。
2. It's difficult to find boiler economizer in a sentence. 用boiler economizer造句挺難的